Process for incorporating stabilizer into polycondensates

Details Process for incorporating stabilizer into polycondensates Process for incorporating stabilizer into polycondensates

1994-12-29

1996-12-03

Hoke, Veronica P.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523220, 523351, 524 91, 524101, 524126, 524153, 524219, 524255, 524257, 524351, C08K 500

Patent

active

055809138

ABSTRACT:
A process for the homogeneous incorporation of a stabilizers into a polycondensate in which the stabilizer is first applied to a finely divided solid polycondensate and the mixture is then revolved in the solid phase of the polycondensate, at temperatures of at least 80.degree. C.
Products having an improved color and stability are obtained by this mild incorporation of stabilizer.

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patent: 4520148 (1985-05-01), Golder
patent: 4699942 (1987-10-01), Weaver et al.
patent: 4755587 (1988-07-01), Rinehart
patent: 5026818 (1991-06-01), Heinz et al.

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